ΔE 9.6, close: similar, with a visible difference side by side. Chromium Oxide Green is a little lighter, more saturated than Straken Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Chromium Oxide Green is a little lighter, more saturated than Straken Green.
The same difference applies the other way round: Straken Green is a little darker, more muted.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Straken Green on the colour wheel See Chromium Oxide Green on the colour wheel
All matches: Straken Green equivalents · Chromium Oxide Green equivalents